Pressure control method, electronic device, and storage medium

Abstract

The application discloses a pressure control method, an electronic device and a storage medium, and is applied to a bellows valve, the bellows valve has a bellows, and the pressure control method comprises the following steps: acquiring a lumen pressure detection value of the bellows; acquiring an external pressure detection value of the bellows; and adjusting the lumen pressure of the bellows according to the lumen pressure detection value and the external pressure detection value, so as to balance the internal and external pressures of the lumen of the bellows. The application aims to monitor the internal and external pressures of the bellows in real time through the pressure control method, to ensure that the internal and external pressures of the bellows are balanced, to avoid the rupture of the bellows due to a large one-way force, and to effectively improve the service life of the bellows.

Description

Technical Field

[0001] This invention relates to the field of valve body control technology, and in particular to a pressure control method, electronic device, and storage medium. Background Technology

[0002] Bellows valves with bellows structure are widely used in demanding environments (toxic gases, gases that explode upon contact with air, and radioactive media) in industries such as nuclear power, petroleum, semiconductors, chemicals, pharmaceuticals, and electric power. They are used for media shut-off or flow regulation. Because bellows valves replace traditional packing designs, they have a higher cleanliness or sealing rating.

[0003] In bellows valves, the working fluid typically has high pressure within the valve cavity, exerting significant pressure on the bellows wall. This makes the bellows susceptible to deformation due to unidirectional forces. Over time, the cumulative deformation, combined with the extension and retraction of the valve stem, can easily lead to fatigue fracture, thus reducing its service life. Furthermore, existing bellows cannot detect the pressure inside and outside the cavity, making it impossible to ensure pressure balance and posing a certain degree of danger. Summary of the Invention

[0004] The main objective of this invention is to provide a pressure control method, electronic device, and storage medium. The aim of this pressure control method is to monitor the pressure inside and outside the bellows in real time to ensure the pressure balance inside and outside the bellows, thereby avoiding the bellows from cracking due to large unidirectional forces and effectively improving the life of the bellows.

[0005] To achieve the above objectives, the present invention proposes a pressure control method applied to a bellows valve, the bellows valve having a bellows, the pressure control method comprising:

[0006] Obtain the measured value of the cavity pressure of the bellows;

[0007] Obtain the external pressure detection value of the bellows;

[0008] The pressure inside the corrugated pipe is adjusted based on the detected pressure value of the pipe cavity and the detected external pressure value to balance the pressure inside and outside the corrugated pipe cavity.

[0009] In one embodiment, the step of adjusting the cavity pressure of the bellows based on the cavity pressure detection value and the external pressure detection value to balance the pressure inside and outside the cavity of the bellows includes:

[0010] The lumen pressure detection value and the external pressure detection value are compared to determine whether the lumen pressure detection value is greater than the external pressure detection value.

[0011] If so, reduce the pressure in the cavity;

[0012] If not, increase the pressure in the cavity;

[0013] If they are equal, then the pressure balance inside and outside the bellows cavity is maintained.

[0014] In one embodiment, after adjusting the cavity pressure of the bellows based on the cavity pressure detection value and the external pressure detection value to balance the internal and external pressures of the bellows cavity, the pressure control method further includes:

[0015] Obtain the lumen pressure regulation value;

[0016] The pressure adjustment value of the cavity and the external pressure detection value are compared to obtain the pressure difference value, and it is determined whether the pressure difference value is 0.

[0017] If not, continue to adjust the pressure in the bellows cavity, obtain the pressure difference value, and determine whether the pressure difference value is 0;

[0018] If so, the pressure balance inside and outside the bellows cavity is maintained.

[0019] In one embodiment, before obtaining the cavity pressure detection value of the bellows, the pressure control method further includes:

[0020] The wall condition of the corrugated pipe is detected, and the wall deformation data of the corrugated pipe is obtained.

[0021] Obtain the original shape data of the bellows;

[0022] Determine whether the pipe wall deformation data and the original shape data are consistent;

[0023] If so, then stop;

[0024] If not, proceed with the step of obtaining the cavity pressure detection value of the bellows.

[0025] In one embodiment, the step of obtaining the original shape data of the bellows includes:

[0026] Obtain environmental characteristics of the bellows;

[0027] Based on the environmental characteristics of the corrugated pipe, a corrugated pipe deformation prediction model is constructed.

[0028] Obtain the corrugated pipe environmental parameters and input them into the corrugated pipe deformation prediction model, outputting the predicted value of the corrugated pipe shape.

[0029] The original shape data is obtained by combining the predicted values ​​of the corrugated pipe shape.

[0030] In one embodiment, the step of obtaining the original shape data of the bellows further includes:

[0031] Update the environmental parameters of the corrugated pipe according to the wall condition of the corrugated pipe;

[0032] Based on the corrugated pipe environmental parameters, the corrugated pipe deformation prediction model is trained by sample amplification to obtain amplified sample data;

[0033] Based on the amplified sample data, the corrugated pipe deformation prediction model is iteratively optimized.

[0034] In one embodiment, before the step of obtaining the lumen pressure detection value of the bellows, the method further includes:

[0035] Determine whether the bellows is leaking;

[0036] If so, then stop;

[0037] If not, proceed with the step of obtaining the measured value of the lumen pressure of the bellows.

[0038] In one embodiment, the step of obtaining the external pressure detection value of the bellows includes:

[0039] Obtain the fluid velocity value outside the bellows;

[0040] Based on the fluid velocity value, the fluid pressure value outside the bellows is obtained;

[0041] The external pressure detection value is obtained based on the fluid pressure value.

[0042] The present invention also proposes an electronic device, the electronic device comprising:

[0043] At least one processor;

[0044] A memory that is communicatively connected to the at least one processor;

[0045] The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the steps of the pressure control method described above.

[0046] The present invention also proposes a computer-readable storage medium storing a program for implementing a pressure control method, the program for implementing the pressure control method being executed by a processor to implement the steps of the pressure control method as described above.

[0047] The pressure control method of this invention detects the pressure in the bellows cavity of the bellows valve to obtain the detected value of the bellows cavity pressure, and the external pressure of the bellows in the bellows valve to obtain the detected value of the external pressure of the bellows. Based on the detected values ​​of the cavity pressure and the external pressure, the pressure in the bellows cavity is adjusted to maintain the pressure inside and outside the bellows cavity in balance, thereby preventing the bellows from rupturing due to large unidirectional forces and effectively improving the service life of the bellows. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0049] Figure 1 This is a schematic flowchart of a pressure control method in one embodiment of the present invention;

[0050] Figure 2 This is a schematic diagram of the process for obtaining the original shape data of a bellows in one embodiment of the present invention;

[0051] Figure 3 This is a schematic diagram of the process for obtaining the external pressure detection value of the bellows in one embodiment of the present invention;

[0052] Figure 4 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention.

[0053] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0055] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0056] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0057] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0058] Example 1

[0059] To achieve the above objectives, this invention proposes a pressure control method applied to a bellows valve, the bellows valve having a bellows, and the pressure control method comprising:

[0060] Step S10: Obtain the measured value of the corrugated pipe cavity pressure;

[0061] Step S20: Obtain the external pressure detection value of the bellows;

[0062] Step S30: Adjust the pressure inside the bellows according to the measured pressure value and the measured external pressure value to balance the pressure inside and outside the bellows.

[0063] Understandably, bellows valves are typically gate valves, and some are also used to regulate flow. In actual production, they are usually used to control water and other liquids, as well as gases such as steam and compressed air. They have a compact structure and are not easily corroded by liquids and gases. Bellows valves are equipped with bellows, which are fitted onto the valve. The use of bellows replaces the original sealing packing in the valve, giving bellows valves a high sealing level as well as a high cleanliness level.

[0064] One type of existing bellows valve can inject a pressure-stabilizing gas into the bellows cavity to achieve pressure balance between the inside and outside of the bellows cavity. Specifically, the bellows, fitted onto the valve stem, and the valve stem together form a chamber for filling with the pressure-stabilizing gas. When the valve stem moves along its axis, the bellows compresses or expands accordingly, and the chamber also compresses or expands with the bellows. However, because bellows valves need to cope with different fluid media, different flow velocities, and different pressures, the pressure exerted on the bellows by the external environment is constantly changing, and the amount of pressure-stabilizing gas required in the chamber formed inside the bellows also varies. The pressure control method in this application can detect the pressure in the bellows cavity and the external pressure in real time, and can adjust the pressure in the bellows cavity according to the detected pressure in the cavity and the external pressure to dynamically balance the internal and external pressures of the bellows.

[0065] It is understandable that, such as Figure 1 As shown, the pressure control method first obtains the cavity pressure detection value of the bellows. The cavity pressure detection value represents the current pressure inside the cavity of the bellows, that is, the amount of stabilizing gas inside the cavity of the bellows. Then, the external pressure detection value of the bellows is obtained.

[0066] Furthermore, the bellows is located in the valve cavity. When the valve is turned on, some fluid medium will pass through the valve cavity and contact the outer wall of the bellows. At this time, the fluid medium with a certain flow rate and pressure will impact the outer wall of the bellows. Therefore, the external pressure detection value of the bellows represents the pressure value borne by the outer wall of the bellows in the valve cavity.

[0067] Subsequently, based on the obtained cavity pressure detection values ​​and external pressure detection values, the internal cavity pressure of the bellows is adjusted to maintain a balance between the pressure inside and outside the bellows. This avoids excessive internal or external pressure, which could lead to a large unidirectional force on the bellows wall, thereby improving the fatigue strength of the bellows and ultimately extending its service life.

[0068] Additionally, it should be noted that, in order to regulate the pressure in the bellows cavity, a bellows cavity pressure regulation system can be constructed. This system includes a gas storage device, a gas filling device, and a one-way valve device located above the gas filling and discharging device. The gas storage device stores pressure-stabilizing gas. The gas filling and discharging device includes a gas filling device and a gas discharging device, both of which are connected to the gas storage device and the bellows cavity. The gas filling device is used to fill the bellows cavity with pressure-stabilizing gas, and the gas discharging device is used to draw pressure-stabilizing gas from the bellows cavity. A one-way valve device is installed between the gas filling device and the bellows cavity to prevent pressure-stabilizing gas from flowing from the bellows cavity into the gas storage device. Another one-way valve device is installed between the gas discharging device and the gas storage device to prevent pressure-stabilizing gas from flowing from the gas storage device into the bellows cavity.

[0069] In one embodiment, the step of adjusting the cavity pressure of the bellows based on the cavity pressure detection value and the external pressure detection value to balance the internal and external pressures of the bellows cavity includes:

[0070] Step S301: Compare the lumen pressure detection value and the external pressure detection value to determine whether the lumen pressure detection value is greater than the external pressure detection value;

[0071] If so, reduce the lumen pressure;

[0072] If not, increase the lumen pressure;

[0073] If they are equal, then the pressure balance inside and outside the bellows cavity is maintained.

[0074] It is understandable that, such as Figure 1 As shown, after obtaining the cavity pressure detection value and the external pressure detection value, the two values ​​are compared to determine whether the internal and external pressures of the bellows are balanced. If they are balanced, the detection and adjustment stop; if they are not balanced, the relationship between the internal and external pressures needs to be determined. When the cavity pressure detection value is greater than the external pressure detection value, it indicates that the cavity pressure of the bellows is high. At this time, a unidirectional force is generated inside the bellows towards the valve cavity, and the pressure in the cavity needs to be stabilized by the venting device. Gas is introduced to reduce the pressure in the pipe cavity. When the detected pressure in the pipe cavity is less than the detected external pressure, it indicates that the pressure outside the bellows is greater. The fluid medium in the valve cavity exerts a unidirectional force on the bellows wall towards the inside of the bellows. It is necessary to introduce pressure-stabilizing gas into the pipe cavity through the gas filling device to increase the pressure in the pipe cavity. When the detected pressure in the pipe cavity is equal to the detected external pressure, it indicates that the internal and external pressures of the bellows are in equilibrium. At this time, there is no need to adjust the pressure in the bellows cavity; it is sufficient to maintain the balance between the pressure in the bellows cavity and the external pressure.

[0075] In one embodiment, after adjusting the cavity pressure of the bellows based on the cavity pressure detection value and the external pressure detection value to balance the internal and external pressures of the bellows cavity, the pressure control method further includes:

[0076] Step B10: Obtain the lumen pressure regulation value;

[0077] Step B20: Compare the regulated pressure value in the tubing with the external pressure detection value to obtain the pressure difference value, and determine whether the pressure difference value is 0;

[0078] If not, continue to adjust the pressure in the bellows cavity, obtain the pressure difference value, and determine whether the pressure difference value is 0;

[0079] If so, the pressure balance inside and outside the bellows cavity is maintained.

[0080] In this embodiment, as Figure 1 As shown, after the pressure of the bellows is adjusted, the pressure control method also includes pressure retesting. Pressure retesting requires obtaining the pressure adjustment value of the bellows cavity. This pressure adjustment value is the current pressure value inside the cavity after the bellows cavity is adjusted, such as after increasing or decreasing the pressure. Then, the pressure adjustment value of the cavity is compared with the external pressure detection value again to obtain the pressure difference value. The pressure difference value is used to determine whether it is necessary to continue to adjust the pressure of the cavity.

[0081] Understandably, due to precision errors in the mechanical accuracy of the inflation / deflation device or the adjustment accuracy of the lumen pressure regulation system, one or a few adjustments cannot accurately balance the pressure inside and outside the bellows lumen. Therefore, a pressure retest is necessary to check the adjusted lumen pressure and determine if further adjustment is needed. After comparing the adjusted lumen pressure value with the external pressure detection value, the pressure difference is obtained. It is then determined whether this pressure difference is 0. If it is 0, it indicates that the adjusted lumen pressure value is consistent with... When the external pressure detection values ​​are the same, the pressure inside and outside the bellows cavity reaches equilibrium, and it is sufficient to maintain the equilibrium between the bellows cavity pressure and the external pressure. When the pressure difference is not 0, it indicates that after adjustment, the cavity pressure adjustment value and the external pressure detection value are different, and the bellows cavity needs to be readjusted. At this time, the cavity pressure adjustment value needs to cover the above-mentioned cavity pressure detection value, and the cavity pressure detection value and the external pressure detection value should be compared. By judging the relationship between the two, the pressure of the bellows cavity is adjusted. The judgment method will not be elaborated here.

[0082] This pressure retesting step can perform cyclic checks. When the pressure inside and outside the bellows is unbalanced, it continuously acquires the pressure difference between the regulated pressure value and the external pressure detection value, and continuously adjusts the pressure inside the bellows until the pressure inside and outside the bellows is balanced. The step then stops, effectively improving the control accuracy of the bellows pressure regulation system and the pressure control method, and ensuring the balance accuracy of the bellows.

[0083] Example 2

[0084] In one embodiment, before obtaining the cavity pressure detection value of the bellows, the pressure control method further includes:

[0085] Step F10: Detect the wall condition of the corrugated pipe and obtain the wall deformation data of the corrugated pipe.

[0086] Step F20: Obtain the original shape data of the bellows;

[0087] Step F30: Determine whether the pipe wall deformation data and the original shape data are consistent;

[0088] If so, then stop;

[0089] If not, proceed with the step of obtaining the measured value of the bellows' lumen pressure.

[0090] In this embodiment, as Figure 1 and Figure 2 As shown, before obtaining the pressure detection value of the bellows cavity, the pressure control method also includes detecting the shape of the bellows. By detecting changes in the shape of the bellows wall, it is determined whether there is a pressure difference between the inside and outside of the bellows cavity. First, by detecting the state of the bellows wall, the bellows wall deformation data is obtained. The bellows wall deformation data includes changes in the wall curvature, the current compression state of the wall, that is, the expansion and contraction length of the bellows as the valve stem position changes. Furthermore, the wall curvature and compression state are also related to different positions of the bellows.

[0091] It is understandable that a corrugated pipe has a tubular structure and multiple layers of spaced and connected annular grooves on its wall. The corrugated pipe is compressed or expanded by compressing or expanding the joints of the annular grooves and the annular grooves themselves. However, the curvature of the pipe wall and the compression state of the pipe wall are different at the joints or in the annular grooves.

[0092] Understandably, the process involves acquiring the original shape data of the bellows, which is a set of numerical values ​​representing the shape of the bellows wall when the pressure inside and outside the bellows is balanced. The process then compares the wall deformation data with the original shape data to determine if they match. If they match, it indicates that the bellows has not deformed, meaning the pressure inside and outside the bellows is balanced, and no further testing or adjustment steps are needed. If the two sets of data do not match, the process begins by acquiring the bellows' pressure measurement value, initiating subsequent testing and adjustment steps to balance the pressure inside and outside the bellows and restore the bellows to its original shape.

[0093] In another embodiment of the present invention, the detection of the wall shape of the corrugated pipe also includes shape re-inspection. The shape re-inspection is used to detect the wall shape of the corrugated pipe again after the above detection and adjustment steps are completed when the wall deformation data and the original shape data are inconsistent. That is, the wall deformation data of the corrugated pipe is obtained again and compared with the original shape data of the corrugated pipe to determine whether the shape of the corrugated pipe has been restored to the original shape after adjustment.

[0094] In one embodiment, the step of obtaining the original shape data of the bellows includes:

[0095] Step F201: Obtain the environmental characteristics of the bellows;

[0096] Step F202: Based on the environmental characteristics of the corrugated pipe, construct a corrugated pipe deformation prediction model;

[0097] Step F203: Obtain the corrugated pipe environmental parameters and input the corrugated pipe environmental parameters into the corrugated pipe deformation prediction model, and output the corrugated pipe shape prediction value.

[0098] Step F204: Collect the predicted values ​​of the corrugated pipe shape to obtain the original shape data.

[0099] In this embodiment, before comparing the wall deformation data and the original shape data of the bellows, it is necessary to first obtain the original shape data of the bellows. The original shape data of the bellows refers to the set of data formed by the shape characteristics of the bellows when the pressure inside and outside the bellows is balanced under the action of no unidirectional force.

[0100] It is understandable that, such as Figure 2 As shown, firstly, under the condition that the pressure inside and outside the bellows cavity is kept in equilibrium, the environmental characteristics of the bellows are obtained. The environmental characteristics include the external environmental characteristics of the bellows cavity at this time, such as the flow rate or pressure of the external working fluid medium, the working temperature, the degree of compression of the bellows with the valve stem, that is, the extension and contraction length of the bellows, and the internal pressure of the bellows cavity.

[0101] When the bellows valve is closed, the bellows is in an extended state along with the valve stem. At this time, the bellows is located on the side wall of the bellows valve inlet and bears the pressure of the working fluid medium on one side. At this time, the extension length of the bellows is defined as 1, the flow velocity of the working fluid medium in the bellows is 0, the external pressure of the bellows is 34.4 bar, and the working temperature of the bellows is 93 degrees Celsius.

[0102] When the bellows valve is in the open state, the bellows is in a compressed state along with the valve stem. At this time, the bellows extension length is defined as 0, the working fluid medium velocity of the bellows is 1, the external pressure of the bellows is 34.4 bar, and the working temperature of the bellows is 93 degrees Celsius.

[0103] In addition, add working fluid medium parameters, such as water, oil, and steam, and define them as 1, 2, and 3 respectively; add bellows material parameters, such as cast steel, carbon steel, and stainless steel, and define them as 1, 2, and 3 respectively; add bellows structural parameters, such as wave pitch parameters, single-layer wall thickness parameters, and conventional layer number parameters, and determine the specific values ​​of the above parameters according to the bellows model.

[0104] Based on the above-mentioned environmental characteristics of the bellows, a bellows deformation prediction model is constructed. The bellows environmental parameters are input, which are the current environmental characteristics of the bellows, namely, the aforementioned expansion and contraction length, medium flow velocity, internal and external pressure of the bellows cavity, and working temperature of the bellows. The model outputs a predicted value of the bellows shape, which represents the current state and shape that the bellows should have. In other words, the value represents the state and shape of the bellows when it is in equilibrium inside and outside the cavity. The predicted values ​​of the bellows shape are then aggregated to obtain the original shape data.

[0105] Example 3

[0106] In one embodiment, the step of obtaining the original shape data of the bellows further includes:

[0107] Step F205: Update the corrugated pipe environmental parameters according to the wall condition of the corrugated pipe;

[0108] Step F206: Based on the corrugated pipe environmental parameters, perform sample amplification training on the corrugated pipe deformation prediction model to obtain amplified sample data;

[0109] Step F207: Based on the amplified sample data, iteratively optimize the corrugated pipe deformation prediction model.

[0110] In this embodiment, as Figure 2As shown, due to the small number of samples in the early stage of the corrugated pipe deformation prediction model, the model has a poor simulation of the shape of the corrugated pipe and cannot accurately restore the shape characteristics of the corrugated pipe. Therefore, the corrugated pipe deformation prediction model can be trained by updating the corrugated pipe environmental parameters, and the model can be iteratively optimized.

[0111] Understandably, based on the original corrugated pipe environmental characteristics, users input corrugated pipe environmental parameters and agree to apply these parameters to the corrugated pipe deformation prediction model for sample amplification training, or users actively update the corrugated pipe environmental parameters into the corrugated pipe deformation prediction model to obtain amplified sample data for sample amplification training of the corrugated pipe deformation prediction model. This amplified sample data is mainly based on the corrugated pipe environmental parameters, and other auxiliary parameters that affect the pressure balance of the corrugated pipe cavity can also be set. These auxiliary parameters are not included in the aforementioned corrugated pipe environmental parameters.

[0112] After obtaining the amplified sample data, the corrugated pipe deformation prediction model is iteratively optimized using the newly added amplified sample data. This continuously enhances the model's fit to the state and shape of the corrugated pipe, improves the model's generalization performance, and enables the accurate reconstruction of the original shape data of the corrugated pipe using environmental parameters.

[0113] In one embodiment, before the step of obtaining the cavity pressure detection value of the bellows, the method further includes:

[0114] Step F01: Determine if the bellows is leaking.

[0115] If so, then stop;

[0116] If not, proceed with the step of obtaining the measured value of the bellows cavity pressure.

[0117] Understandably, bellows will experience fatigue fracture after repeated compression and expansion, resulting in tiny air leakage holes. These tiny leakage holes directly affect the pressure balance inside and outside the bellows cavity. Therefore, before adjusting the pressure inside the bellows cavity, it is necessary to determine whether the bellows is leaking. If leakage occurs, to prevent the control gas inside the bellows cavity from mixing with the fluid medium in the valve cavity, a stop procedure must be performed, and the bellows in the bellows valve must be replaced promptly. After replacing the bellows, a leak test must be performed again. If there is no leakage, the procedure of obtaining the pressure test value of the bellows cavity, as well as subsequent steps of detecting the external pressure and adjusting the pressure inside the bellows cavity, should be performed.

[0118] In one embodiment, the step of obtaining the external pressure detection value of the bellows includes:

[0119] Step S201: Obtain the fluid velocity value outside the bellows;

[0120] Step S202: Obtain the fluid pressure value outside the bellows based on the fluid flow rate value;

[0121] Step S203: Obtain the external pressure detection value based on the fluid pressure value.

[0122] It is understandable that, such as Figure 3 As shown, the external pressure detection value of the bellows first obtains the fluid velocity value outside the bellows, and then obtains the fluid pressure value outside the bellows based on the fluid velocity value, thereby obtaining the external pressure detection value of the bellows. Specifically, the fluid velocity and the fluid pressure at a certain point can be related through Bernoulli's equation. That is, by obtaining either the fluid velocity or the fluid pressure value outside the bellows, the other value can be obtained through Bernoulli's equation, thus obtaining the external pressure detection value at a certain point outside the bellows.

[0123] Example 4

[0124] This invention provides an electronic device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the pressure control method in the first embodiment described above.

[0125] The following is for reference. Figure 4 The diagram illustrates a structural schematic of an electronic device suitable for implementing embodiments of the present disclosure. The electronic devices in the embodiments of the present disclosure may include, but are not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 4 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments disclosed herein.

[0126] like Figure 4As shown, the electronic device may include a processing unit 1001 (e.g., a central processing unit, a graphics processor, etc.) that can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the electronic device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus.

[0127] Typically, the following systems can be connected to I / O interface 1006: input devices 1007 including, for example, touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009.

[0128] Communication devices allow electronic devices to communicate wirelessly or wiredly with other devices to exchange data. While the figures show electronic devices with various systems, it should be understood that implementation or possession of all the systems shown is not required. More or fewer systems may be implemented alternatively.

[0129] In particular, according to embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication device 1009, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of embodiments of this disclosure.

[0130] The electronic device provided by this invention employs the pressure control method described in the above embodiments, solving the technical problem that existing technologies cannot detect the pressure inside and outside the tube cavity, and cannot guarantee the pressure balance inside and outside the bellows. Compared with the prior art, the beneficial effects of the electronic device provided by the embodiments of this invention are the same as those of the pressure control method provided in the above embodiments, and other technical features of this electronic device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0131] It should be understood that various parts of this disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0132] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0133] Example 5

[0134] This embodiment provides a computer-readable storage medium having computer-readable program instructions stored thereon, which are used to execute the pressure control method described in the above embodiment.

[0135] The computer-readable storage medium provided in this embodiment of the invention may be, for example, a USB flash drive, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination thereof.

[0136] The aforementioned computer-readable storage medium may be included in an electronic device or may exist independently without being assembled into an electronic device.

[0137] The aforementioned computer-readable storage medium carries one or more programs that, when executed by an electronic device, cause the electronic device to: acquire a cavity pressure detection value of the bellows; acquire an external pressure detection value of the bellows; and adjust the cavity pressure of the bellows based on the cavity pressure detection value and the external pressure detection value to balance the internal and external pressures of the bellows.

[0138] Computer program code for performing the operations of this disclosure can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server.

[0139] In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0140] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0141] The modules described in the embodiments of this disclosure can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0142] The computer-readable storage medium provided by this invention stores computer-readable program instructions for executing the aforementioned pressure control method, solving the technical problem that the prior art cannot detect the pressure inside and outside the lumen, and cannot guarantee the pressure balance inside and outside the bellows. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the embodiments of this invention are the same as the beneficial effects of the pressure control method provided in the above embodiments, and will not be repeated here.

[0143] Example 6

[0144] This application also proposes a computer program product, including a computer program that, when executed by a processor, implements the steps of the pressure control method described above.

[0145] The computer program product provided in this application solves the technical problem that existing technologies cannot detect the pressure inside and outside the pipe cavity, and cannot guarantee the pressure balance inside and outside the bellows. Compared with the prior art, the beneficial effects of the computer program product provided in the embodiments of this invention are the same as the beneficial effects of the pressure control method provided in the above embodiments, and will not be repeated here.

[0146] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A pressure control method applied to a bellows valve, the bellows valve having a bellows, characterized in that, The pressure control method includes: Before obtaining the measured pressure value of the bellows cavity, the pressure control method further includes: The wall condition of the corrugated pipe is detected, and the wall deformation data of the corrugated pipe is obtained. Obtain the original shape data of the bellows; Determine whether the pipe wall deformation data and the original shape data are consistent; If so, then stop; If not, proceed with the step of obtaining the cavity pressure detection value of the bellows; Obtain the measured value of the cavity pressure of the bellows; Obtain the external pressure detection value of the bellows; The pressure inside the corrugated pipe is adjusted based on the detected pressure value of the pipe cavity and the detected external pressure value to balance the pressure inside and outside the corrugated pipe cavity.

2. The pressure control method according to claim 1, characterized in that, The step of adjusting the cavity pressure of the bellows based on the cavity pressure detection value and the external pressure detection value to balance the internal and external pressures of the bellows cavity includes: The lumen pressure detection value and the external pressure detection value are compared to determine whether the lumen pressure detection value is greater than the external pressure detection value. If so, reduce the pressure in the cavity; If not, increase the pressure in the cavity; If they are equal, then the pressure balance inside and outside the bellows cavity is maintained.

3. The pressure control method according to claim 2, characterized in that, After adjusting the cavity pressure of the bellows based on the cavity pressure detection value and the external pressure detection value to balance the internal and external pressures of the bellows cavity, the pressure control method further includes: Obtain the lumen pressure regulation value; The pressure adjustment value of the cavity and the external pressure detection value are compared to obtain the pressure difference value, and it is determined whether the pressure difference value is 0. If not, continue to adjust the pressure in the bellows cavity, obtain the pressure difference value, and determine whether the pressure difference value is 0; If so, the pressure balance inside and outside the bellows cavity is maintained.

4. The pressure control method according to claim 1, characterized in that, The step of obtaining the original shape data of the bellows includes: Obtain environmental characteristics of the bellows; Based on the environmental characteristics of the corrugated pipe, a corrugated pipe deformation prediction model is constructed. Obtain the corrugated pipe environmental parameters and input them into the corrugated pipe deformation prediction model, outputting the predicted value of the corrugated pipe shape. The original shape data is obtained by combining the predicted values ​​of the corrugated pipe shape.

5. The pressure control method according to claim 4, characterized in that, The step of obtaining the original shape data of the bellows further includes: Update the environmental parameters of the corrugated pipe according to the wall condition of the corrugated pipe; Based on the corrugated pipe environmental parameters, the corrugated pipe deformation prediction model is trained by sample amplification to obtain amplified sample data; Based on the amplified sample data, the corrugated pipe deformation prediction model is iteratively optimized.

6. The pressure control method according to claim 1, characterized in that, Before the step of obtaining the cavity pressure detection value of the bellows, the method further includes: Determine whether the bellows is leaking; If so, then stop; If not, proceed with the step of obtaining the measured value of the lumen pressure of the bellows.

7. The pressure control method according to claim 1, characterized in that, The step of obtaining the external pressure detection value of the bellows includes: Obtain the fluid velocity value outside the bellows; Based on the fluid velocity value, the fluid pressure value outside the bellows is obtained; The external pressure detection value is obtained based on the fluid pressure value.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; A memory that is communicatively connected to the at least one processor; The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the steps of the pressure control method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a program for implementing a pressure control method, which is executed by a processor to implement the steps of the pressure control method as claimed in any one of claims 1 to 6.

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